Rated 4 out of 5 stars

I honestly have never had a problem with it. I've been doing web design and graphic design for quite a long while, and I do not notice any quality issues that other people are talking about. It's easy to use on the fly and great for quick scaling of icons and the like. While I'm sure the other people aren't wrong in their issues, it maybe be on a computer by computer basis. Try it out, and if it's buggy for you, remove it. If not, enjoy it like I have. 9/10

This review is for a previous version of the add-on (0.3).